package PTA;

import java.util.Scanner;

public class Pta16 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int y= sc.nextInt();
        if (y%4==0&&y%100!=0||y%400==0){
            System.out.println("yes");
        }else {
            System.out.println("no");
        }
    }
}
